Note 8 - Employee Post-employment Benefits (Details) - Changes in the Amounts Recognized in Accumulated Other Comprehensive Income/(Loss) - USD ($) $ in Thousands	12 Months Ended
	Jun. 02, 2015	Jun. 03, 2014
Pension Benefits [Member]
Note 8 - Employee Post-employment Benefits (Details) - Changes in the Amounts Recognized in Accumulated Other Comprehensive Income/(Loss) [Line Items]
Beginning of year	$ (17,086)	$ (16,419)
Net actuarial loss/(gain)	(1,782)	(2,379)
Amortization of prior service (cost)/credit	1	1
Amortization of actuarial gain	1,718	1,711
End of year	(17,149)	(17,086)
Postretirement Medical and Life Benefits [Member]
Note 8 - Employee Post-employment Benefits (Details) - Changes in the Amounts Recognized in Accumulated Other Comprehensive Income/(Loss) [Line Items]
Beginning of year	(1,017)	(1,729)
Net actuarial loss/(gain)	(111)	514
Amortization of prior service (cost)/credit		(46)
Amortization of actuarial gain	134	244
End of year	$ (994)	$ (1,017)